What is a cookie?
What kinds of cookies exist?
There are many other types of cookies in addition to the “authentication” cookies referenced above. For example, some cookies let the website remember your preferences, and other advertising cookies can be used to track the performance of online marketing campaigns. When browsing ChartDynamix.com there are “first party” cookies set by Chart Dynamix, as well as “third party” cookies such as a Facebook “Like” button that remembers that you liked a page.
Is there a way to prevent cookies from being set?
Cookies are generally harmless. However some users do not want their information to be stored, even if it is being used to enhance their user experience. While it is possible to block or delete some cookies from your browser settings, you can expect to lose some website functionality if you do so.
For more general information on cookies see the Wikipedia article on HTTP Cookies.